Improvement in automatic gates



UNITED STATES PATENT CEFICE.

JOSEPH A. TREAT, OF` TALLMADGE, OHIO.

IMPROVEMENT IN AUTOMATIOGATES.

Specification forming part of Letters Patent No. 154,968, datedSeptember 15, 1874; application filed September 13, 1871. V Y

To aZZ whom it may concern:

Be it known that I, J osEPH A. TREAT, of Tallmadge, in the county ofSummit and State of Ohio, have invented certain Improvements inSelf-Operating Gates, of which the following is a specification:

My invention relates to improvements inor close the same. The object ofmy invention is, further, to facilitate the raising and lowering ofgates by means of lever arrangements, such as described in thespecification of Letters'Patent granted to Joseph A. Treat, bearing dateon or about October 12, 1858, No. 21,785 5 and the combination of suchraising and lowering arrangements of mechanism for automatically openingvand closing gates, in connection with wheel-irons, as hereinafter morefully set forth.

In the accompanying drawings, Figure 1 represents a perspective view ofa gate with my improvements applied thereto. Figs. 2, 3, 4, and 5 aredetail views of parts separately. In each of the views similar letters4`are employed to indicate .corresponding parts.

A A represent a pair of gate-posts firmly set in the ground, and B agate closing a roadway. To the post A, at a short distance from theground, a bracket, b, is aixed, and above, at a distance slightly lessthan the height of the gate B, it is provided with a staple, G, which isfirmly screwed or otherwise affixed thereto. Through the bracket b andstaple C a vertical rod, d, is passed, with capability of turning inbearings formed therein. To the lower end of this rod d a cross bar orarm, e, is affixed, to the outer ends of which one end of each of therods ff is connected, the opposite ends of such rods being jointed toshort lever- 4shown in Figs. 1 and 2, which is formed with a bearing forthe passage of the rod d, and at the upper edge the gate B is fittedwith a plate, la, at the outer extremity of which-'is formed aheart-shaped opening, k', in which the rod d works. The rod oZ, at itsupper end is provided with a ilat extension, d', (extending aconsiderable distance above the upper side of the staple O, as shown byFigs. 1, 2, and 3,) adapted to be received in a rectangular slot, Z1, inthe lend L of a lever, L, which is arranged immediately above the plate7c, in such manner that the end L of the lever L may slide freely up anddown on the extension d', but without capability of turning thereon. Tothe center of the lever L one end of a shorter lever, Z, is connected,the opposite end of which is provided with a slot, Z2, through which theshank of a connecting-pin, Z3, works, which is firmly secured to the toprail ofthe gate B. D is a lever-arm, the upper end of which is pivotedon the staple O. To the center of this lever D the upper end of ashorter lever, g, is connected, the lower end of the same being providedwith a forward extension, g', through which the vertical rod d passes,and upon which the bracket or loop t', affixed to the under side of thegate, rests, thereby' supporting the gate B.

The operation of the gate is as follows: When either of the wheel ironsis thrown down, the rod f, connected therewith, will draw or force thecross-bar e around, thereby turning the rod cZ, and, consequently, thelever L, which draws with it the short lever Z, pivoted to it, anddrawing upon, while at the same time it lifts the front end of the sameup until it unlatches, when the lever L, by the continuous pull impartedto it by the wheelirous through the rod d, bar e, and rods ff, will openor close the gate, as the case may be.

It will thus be seen that the gate is not simply unlatched by theoperation of the wheelirons, but is actually pulled around by them,

so that the gate is certain of operation, and

will open whether the post is perpendicular or not. This gate may alsobe employed upon inclined roads, as it does not depend upon gravity foropening it.

Whenever the swinging of the gate is interfered With by reason of theroadway becoming obstructed by snow or otherwise, the gate may beelevated by pulling the levers D g into the position shown by Fig. 2, inwhich position they may be retained by a cord and stake, or otheravailable means, until the obstrue` tion is removed, thereby 'preventingany interference with the continued use of the gate in the meantime.

Having thus described my invention, I would have it understood that Ilay no claim, separately, to the means for raising a gate overobstructions, nor, broadly, to a vertical rod or to a lever operated bymeans of a vertical rod for opening and closing, as the same are shownand described in the specification of Letters Patent granted to mebearing date the 2d day of October, 1858; but

`What I do claim, and desire to secure by Letters Patent, is*

l. The combination, with a gate, B, slotted lever l, and slidinglever L,of the vertical axisrod d, provided with a cross bar or arm, e, and arectangular extension, d', all constructed and operating substantiallyas and for the purpose shown and described.

2. The combination, With a gate, B, plate k, having a heart-shapedopening, k', sliding bracket t, levers D g, and extension gf, of theaxis-rod d, extension df, bar e, slotted lever l, and sliding lever L,all constructed and operating as shown and described.

Y J A. TREAT.

Witnesses:

F. H. BIERMANN, GEO. W. TIBBrrTs.

